The invention provides a
zirconia ceramic material applied to
dental restoration. The
zirconia ceramic material applied to the
dental restoration is prepared from the following components by mole percentage: 1.5-4% of Nb2O5, 1.5-4% of SnO2 and the balance of ZrO2. The invention further provides a preparation method of the
zirconia ceramic material. The preparation method comprises the following steps of (1), carrying out ball-milling on Nb2O5
powder, SnO2
powder and ZrO2
powder, uniformly mixing and screening to obtain a mixed powder; (2), carrying out isostatic cool pressing formation to obtain powder pressed blanks; and (3) carrying out pre-
sintering and
sintering processes to obtain the zirconia
ceramic material applied to the
dental restoration. According to the zirconia
ceramic material applied to the dental restoration, which is disclosed by the invention, the
biocompatibility is good, the health-harmful problems such as sensitivity do not exist, the
mechanical property is excellent, the actual effect resistance is good, the
phase change from a tetragonal phase to a monoclinic phase does not generate in a hygrothermal environment of an
oral cavity, no clinic risk of exfoliation exists, and the zirconia
ceramic material can be widely suitable for manufacturing dental restoration
prosthesis.